Method for detecting mounting of an object at a terminal device
US12039395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2022 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Sep 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for detecting mounting of a card skimmer at an automated teller machine receives detection data from sensors. The system converts the detection data from the time domain to the frequency domain using a wavelet transform to generate a wavelet matrix of coefficients. The system includes a convolutional neural network model to identify features in the wavelet matrix. The system generates a rain alert signal based on the identified features. The system includes a long short-term memory recurrent neural network model to determine a sequence of (i) an idle state, (ii) a hand approach state, and (iii) a card skimmer mounting state based on the detection data. The system generates a tamper alert signal based on the sequence determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.